<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item>
        首页
      </el-breadcrumb-item>
      <el-breadcrumb-item><a href="/">商品管理</a></el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            />
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">
            添加商品
          </el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table
        :data="goodslist"
        border
        stripe=""
      >
        <el-table-column type="index">
          #
        </el-table-column>
        <el-table-column
          label="商品名称"
          prop="goods_name"
        />
        <el-table-column
          label="商品价格"
          prop="goods_price"
          width="95px"
        />
        <el-table-column
          label="商品重量"
          prop="goods_weight"
          width="70px"
        />
        <el-table-column
          label="创建时间"
          prop="add_time"
          width="140px"
        >
          <template slot-scope="scope">
            {{ scope.row.add_time | dateFormat }}
          </template>
        </el-table-column>
        <el-table-column
          label="操作"
          width="180px"
        >
          <template slot-scope="scope">
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
            >
            </el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeById(scope.row.goods_id)"
            >
            </el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 5, 10, 15]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background=""
      />
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 请求参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总条数
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 添加商品按钮
    goAddPage () {
      this.$router.push('/goods/add')
    },
    // 删除商品
    async removeById (id) {
      const result = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (result !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('goods' + id)
      if (res.meta.status !== 200) {
        this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.getGoodsList()
    },
    // 页码发生变化
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // pagesize改变函数
    handleSizeChange (newSize) {
      this.queryInfo = newSize
      this.getGoodsList()
    },
    // 根据分页获取对应商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品失败')
      }
      console.log(res.data)
      this.total = res.data.total
      this.goodslist = res.data.goods
    }
  }
}
</script>

<style scoped lang="less">

</style>
